Lassen Volcanic · September · California
Lassen Volcanic National Park in September
September is a prime month to visit Lassen Volcanic National Park. Expect busy. Highs average 69°F and lows 46°F, with about 0.8 inches of rain.
September gets a prime rating at Lassen Volcanic. The very best months are Jul–Sep.
Last prime month Best value
What to expect
September is prime at Lassen Volcanic. Quiet and crisp. The highway stays open until the first heavy snow, often in October or November.
Check the snow-clearing updates in spring. Opening dates for the full highway swing by several weeks depending on the winter.
Good to know
- Best months overall: Jul–Sep.
- Closest airport: Redding (RDD), about 1 hour.
- Before you go: The main park highway closes for winter; the snowplow schedule decides when it reopens. Check current conditions on nps.gov.
Questions
Is September a good time to visit Lassen Volcanic National Park?
September is a prime month to visit Lassen Volcanic National Park. Expect busy. Highs average 69°F and lows 46°F, with about 0.8 inches of rain.
What is the weather like in Lassen Volcanic National Park in September?
Highs average 69°F and lows 46°F, with about 0.8 inches of rain. September is rated prime for visiting.
How crowded is Lassen Volcanic National Park in September?
September brings busy to Lassen Volcanic National Park. Go early in the day and book lodging ahead.